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http://dx.doi.org/10.5423/RPD.2010.16.2.109

Analysis of the Factors Involved in the Occurrence of Rice Stripe virus in Chungcheongbukdo in 2008 and 2009  

Kang, Hyo-Jung (Chungcheongbuk-do Agricultural Research and Extension Services)
Ahn, Ki-Su (Chungcheongbuk-do Agricultural Research and Extension Services)
Han, Chong-U (Chungcheongbuk-do Agricultural Research and Extension Services)
Jeong, Kyeong-Heon (Chungcheongbuk-do Agricultural Research and Extension Services)
Park, See-Jung (Chungcheongbuk-do Agricultural Research and Extension Services)
Ji, Jae-Jun (Chungcheongbuk-do Agricultural Research and Extension Services)
Kim, Jeong-Soo (National Institute of Agricultural Science and Technology, RDA)
Publication Information
Research in Plant Disease / v.16, no.2, 2010 , pp. 109-114 More about this Journal
Abstract
The occurrence factors of Rice stripe virus (RSV) in Chungcheongbukdo were analyzed by investigating the viruliferous insect rate (VIR) of overwintered small brown plant hopper (SBPH), the population density of SBPH, the infection rate of natural host plants, and the occurrence rate of RSV on rice paddy fields at the 3 areas of Cheongwon, Jincheon, and Boeun in 2008 and 2009. The average VIR of overwintered SBPH was 0.0% in 2008 and 1.1% in 2009. From SBPH collected on early June in 2009, VIR was higher as 1.4% at Jincheon and 4.2% at Boeun than those of overwintered SBPH, and this higher VIR might relate stronlgy with the adult population of SBPH immigrated from China. The populations of SBPH at Cheongwon, Jincheon and Boeun in 2008 were 3.8, 7.5 and 20.8 Head/$m^2$, respectively. However, those of Cheongwon and Jincheon increased up to about two folds as 8.4 and 13.1 in 2009. No RSV was detected on the natural host plants including barley. The factors involved in RSV occurrence were affected negatively by the low VIR of overwintered SBPH, the low population of overwintered SBPH, the low infection rate of RSV on the natural host plants, and the clean cultivation environment in Chungcheongbukdo.
Keywords
Chungcheongbukdo; Rice stripe virus; Small brown plant hopper;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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